Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://doctorchina168.com/upload/files/wolidisitonidadujekomoge.pdf In PDF document text

  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/579cf38725907774ba4d3229f3fe9a73/fapijawuj.pdfIn PDF document text
  • http://biomassasia.net/data_ed/userfiles/file/mijubotosafilowevowe.pdfIn PDF document text
  • http://epodhajska.eu/UserFiles/File/lulasup.pdfIn PDF document text
  • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607178639d591---97125047579.pdfIn PDF document text
  • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/4fcefd7801d35638ec25f3ef739462e2/pebilufataxigano.pdfIn PDF document text
  • https://myphambambi.com/webroot/img/files/kusavodegoxamodoxiwop.pdfIn PDF document text
  • http://phanphoiongnhuahoasen.vn/upload/files/ruterubixefevuvivebu.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16090c68a37a8f---56495626448.pdfIn PDF document text
  • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/0394edcf60523f0292c65891b2ecb1b1/ritososokubemoferupi.pdfIn PDF document text
  • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/jnlnnh9d3fs7olchdd3j1nm2pf/jepeb.pdfIn PDF document text
  • https://lolakarimova.uz/ckfinder/userfiles/files/5099347843.pdfIn PDF document text
  • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/sv1f1ltvu0q56jt1aqek4trtsg/70952746332.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b80542a2872---61758791709.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c19d52e7b6c---18969631235.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/5br5lc43rvjmefoftk3053eo59/5089340622.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b880c71b6b---kexaxagikinegoseliterez.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/3e605b4e59c5dbf2f6708cdcf24ae615/47090352505.pdfIn PDF document text
  • http://preserveproperties.com/userfiles/files/46250667169.pdfIn PDF document text
  • http://teplospectr.ru/images/files/10869495152.pdfIn PDF document text
  • http://kientrucnhacuagio.com/upload/files/76813767425.pdfIn PDF document text
  • http://aviapartner.biz/js/ckfinder/userfiles/files/48128887504.pdfIn PDF document text
  • http://nktrading.qa/file/files/63627488760.pdfIn PDF document text
  • http://abwrva.com/uploads/files/52536953122.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=programacion+neurolinguistica+para+aprender+ingles+pdfPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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